“为减轻交通事故对行人的伤害,一般轿车保险杠的主要材质已用塑料取代金属,因为在发生车祸时,保险杠碎片飞溅,选择密度较小,硬度较小的物体较好”
“为减轻交通事故对行人的伤害,一般轿车保险杠的主要材质已用塑料取代金属,因为在发生车祸时,保险杠碎片飞溅,选择密度较小,硬度较小的物体较好”
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